R3132 Series Spectrum Analyzer Operation Manual
5.2.18 Third Order Intermodulation Distortion
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5.2.18 Third Order Intermodulation Distortion
Two Signal generators provide the signals required for measuring third order intermodulation.
It is difficult when the input level is low because of begin buried to the noise, to measure the spectrum
generated by the distortion. Third ordered intermodulation is raised by 20 dB if the input level is raised by
10 dB. Then examine with mixer input level set in -20 dBm after the specification is converted into a value,
which is 20 dB larger. Here provides procedure at -20 dBm for a total mixer input level. The test points of
center frequencies are 200 MHz, 1500 MHz, 2500 MHz, 3600 MHz and 7500 MHz.
The points of 3600 MHz and 7500 MHz are applied for R3162/72/82.
Specification:
Total mixer input level: -30 dBm, (+77 dB
µ
V: R3132N), two signal difference 50 kHz
Apply for R3132/32N
≤
-80 dBc (
≤
-60 dBc *)
Frequency Range 200 MHz to 3 GHz
Apply for R3162
≤
-80 dBc (
≤
-60 dBc *)
Frequency Range 200 MHz to 8 GHz
Apply for R3172
≤
-80 dBc (
≤
-60 dBc *)
Frequency Range 200 MHz to 3.3 GHz
≤
-70 dBc (
≤
-50 dBc *)
Frequency Range 3.2 GHz to 26.5 GHz
Apply for R3182
≤
-80 dBc (
≤
-60 dBc *)
Frequency Range 200 MHz to 3.3 GHz
≤
-75 dBc (
≤
-55 dBc *)
Frequency Range 3.2 GHz to 30 GHz
≤
-70 dBc (
≤
-50 dBc *)
Frequency Range 29.5 GHz to 40 GHz
* : Converted specification for a total mixer input level of -20 dBm
